Re: Simple sub design
Actually, a TH has more distortion than a BR for a given excursion.
However, a TH can put out around 6 dB more SPL than a BR using the same driver for a given voltage (power) resulting in a given excursion.
Lightweight cones in TH are much more distorted at a given voltage than they would be in a BR.
Low distortion in TH is not inherent in the design, but in the driver.
For clean output, cones designed for horn loading like the Eminence Lab 12, or the B&C18SW115-4 that DSL and I use in our 18" tapped horns are required.
Jamie could get about 6 dB more output using TH with his Eminence Omega Pro 18", but it would be more distorted than the BR he uses now.
Art
Tim,We own no Danley products and we're not a dealer... Having heard the original TH115 and the revised model (different woofer), I believe that the TH118 will give you more performance than you're used to. You'll initially be surprised and think "wow, there's not a lot of subbage here" because you're probably used to hearing 20% (or far more) distortion and much of that is above the electrical crossover frequency. Want less 250hZ? Take a cut at 80Hz....(been there, done that).
Try to get a listening demo at the very least. Once you get used to hearing undistorted low bass you'll wonder why the rest of the world accepts distortion.
Actually, a TH has more distortion than a BR for a given excursion.
However, a TH can put out around 6 dB more SPL than a BR using the same driver for a given voltage (power) resulting in a given excursion.
Lightweight cones in TH are much more distorted at a given voltage than they would be in a BR.
Low distortion in TH is not inherent in the design, but in the driver.
For clean output, cones designed for horn loading like the Eminence Lab 12, or the B&C18SW115-4 that DSL and I use in our 18" tapped horns are required.
Jamie could get about 6 dB more output using TH with his Eminence Omega Pro 18", but it would be more distorted than the BR he uses now.
Art